xref: /netbsd/sys/dev/pcmcia/mhzc.c (revision c4a72b64)
1 /*	$NetBSD: mhzc.c,v 1.13 2002/10/02 16:52:19 thorpej Exp $	*/
2 
3 /*-
4  * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9  * NASA Ames Research Center.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. All advertising materials mentioning features or use of this software
20  *    must display the following acknowledgement:
21  *	This product includes software developed by the NetBSD
22  *	Foundation, Inc. and its contributors.
23  * 4. Neither the name of The NetBSD Foundation nor the names of its
24  *    contributors may be used to endorse or promote products derived
25  *    from this software without specific prior written permission.
26  *
27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37  * POSSIBILITY OF SUCH DAMAGE.
38  */
39 
40 /*
41  * Device driver for the Megaherz X-JACK Ethernet/Modem combo cards.
42  *
43  * Many thanks to Chuck Cranor for having the patience to sift through
44  * the Linux smc91c92_cs.c driver to find the magic details to get this
45  * working!
46  */
47 
48 #include <sys/cdefs.h>
49 __KERNEL_RCSID(0, "$NetBSD: mhzc.c,v 1.13 2002/10/02 16:52:19 thorpej Exp $");
50 
51 #include "opt_inet.h"
52 #include "opt_ns.h"
53 #include "bpfilter.h"
54 
55 #include <sys/param.h>
56 #include <sys/systm.h>
57 #include <sys/mbuf.h>
58 #include <sys/socket.h>
59 #include <sys/ioctl.h>
60 #include <sys/errno.h>
61 #include <sys/syslog.h>
62 #include <sys/select.h>
63 #include <sys/tty.h>
64 #include <sys/device.h>
65 
66 #include <net/if.h>
67 #include <net/if_dl.h>
68 #include <net/if_ether.h>
69 #include <net/if_media.h>
70 
71 #ifdef INET
72 #include <netinet/in.h>
73 #include <netinet/in_systm.h>
74 #include <netinet/in_var.h>
75 #include <netinet/ip.h>
76 #include <netinet/if_inarp.h>
77 #endif
78 
79 #ifdef NS
80 #include <netns/ns.h>
81 #include <netns/ns_if.h>
82 #endif
83 
84 #if NBPFILTER > 0
85 #include <net/bpf.h>
86 #include <net/bpfdesc.h>
87 #endif
88 
89 #include <machine/intr.h>
90 #include <machine/bus.h>
91 
92 #include <dev/ic/comreg.h>
93 #include <dev/ic/comvar.h>
94 
95 #include <dev/mii/mii.h>
96 #include <dev/mii/miivar.h>
97 
98 #include <dev/ic/smc91cxxreg.h>
99 #include <dev/ic/smc91cxxvar.h>
100 
101 #include <dev/pcmcia/pcmciareg.h>
102 #include <dev/pcmcia/pcmciavar.h>
103 #include <dev/pcmcia/pcmciadevs.h>
104 
105 #include "mhzc.h"
106 
107 struct mhzc_softc {
108 	struct device sc_dev;		/* generic device glue */
109 
110 	struct pcmcia_function *sc_pf;	/* our PCMCIA function */
111 	void *sc_ih;			/* interrupt handle */
112 
113 	const struct mhzc_product *sc_product;
114 
115 	/*
116 	 * Data for the Modem portion.
117 	 */
118 	struct device *sc_modem;
119 	struct pcmcia_io_handle sc_modem_pcioh;
120 	int sc_modem_io_window;
121 
122 	/*
123 	 * Data for the Ethernet portion.
124 	 */
125 	struct device *sc_ethernet;
126 	struct pcmcia_io_handle sc_ethernet_pcioh;
127 	int sc_ethernet_io_window;
128 
129 	int sc_flags;
130 };
131 
132 /* sc_flags */
133 #define	MHZC_MODEM_MAPPED	0x01
134 #define	MHZC_ETHERNET_MAPPED	0x02
135 #define	MHZC_MODEM_ENABLED	0x04
136 #define	MHZC_ETHERNET_ENABLED	0x08
137 #define	MHZC_IOSPACE_ALLOCED	0x10
138 
139 int	mhzc_match __P((struct device *, struct cfdata *, void *));
140 void	mhzc_attach __P((struct device *, struct device *, void *));
141 int	mhzc_detach __P((struct device *, int));
142 int	mhzc_activate __P((struct device *, enum devact));
143 
144 CFATTACH_DECL(mhzc, sizeof(struct mhzc_softc),
145     mhzc_match, mhzc_attach, mhzc_detach, mhzc_activate);
146 
147 int	mhzc_em3336_enaddr __P((struct mhzc_softc *, u_int8_t *));
148 int	mhzc_em3336_enable __P((struct mhzc_softc *));
149 
150 const struct mhzc_product {
151 	struct pcmcia_product mp_product;
152 
153 	/* Get the Ethernet address for this card. */
154 	int		(*mp_enaddr) __P((struct mhzc_softc *, u_int8_t *));
155 
156 	/* Perform any special `enable' magic. */
157 	int		(*mp_enable) __P((struct mhzc_softc *));
158 } mhzc_products[] = {
159 	{ { PCMCIA_STR_MEGAHERTZ_XJEM3336,	PCMCIA_VENDOR_MEGAHERTZ,
160 	    PCMCIA_PRODUCT_MEGAHERTZ_XJEM3336,	0 },
161 	  mhzc_em3336_enaddr,		mhzc_em3336_enable },
162 
163 	/*
164 	 * Eventually we could add support for other Ethernet/Modem
165 	 * combo cards, even if they're aren't Megahertz, because
166 	 * most of them work more or less the same way.
167 	 */
168 
169 	{ { NULL } }
170 };
171 
172 int	mhzc_print __P((void *, const char *));
173 
174 int	mhzc_check_cfe __P((struct mhzc_softc *, struct pcmcia_config_entry *));
175 int	mhzc_alloc_ethernet __P((struct mhzc_softc *, struct pcmcia_config_entry *));
176 
177 int	mhzc_enable __P((struct mhzc_softc *, int));
178 void	mhzc_disable __P((struct mhzc_softc *, int));
179 
180 int	mhzc_intr __P((void *));
181 
182 int
183 mhzc_match(parent, match, aux)
184 	struct device *parent;
185 	struct cfdata *match;
186 	void *aux;
187 {
188 	struct pcmcia_attach_args *pa = aux;
189 
190 	if (pcmcia_product_lookup(pa,
191 	    (const struct pcmcia_product *)mhzc_products,
192 	    sizeof mhzc_products[0], NULL) != NULL)
193 		return (10);		/* beat `com' */
194 
195 	return (0);
196 }
197 
198 void
199 mhzc_attach(parent, self, aux)
200 	struct device *parent, *self;
201 	void *aux;
202 {
203 	struct mhzc_softc *sc = (void *)self;
204 	struct pcmcia_attach_args *pa = aux;
205 	struct pcmcia_config_entry *cfe;
206 
207 	sc->sc_pf = pa->pf;
208 
209 	sc->sc_product = (const struct mhzc_product *)pcmcia_product_lookup(pa,
210             (const struct pcmcia_product *)mhzc_products,
211             sizeof mhzc_products[0], NULL);
212 	if (sc->sc_product == NULL) {
213 		printf("\n");
214 		panic("mhzc_attach: impossible");
215 	}
216 
217 	printf(": %s\n", sc->sc_product->mp_product.pp_name);
218 
219 	/*
220 	 * The address decoders on these cards are wacky.  The configuration
221 	 * entries are set up to look like serial ports, and have no
222 	 * information about the Ethernet portion.  In order to talk to
223 	 * the Modem portion, the I/O address must have bit 0x80 set.
224 	 * In order to talk to the Ethernet portion, the I/O address must
225 	 * have the 0x80 bit clear.
226 	 *
227 	 * The standard configuration entries conveniently have 0x80 set
228 	 * in them, and have a length of 8 (a 16550's size, convenient!),
229 	 * so we use those to set up the Modem portion.
230 	 *
231 	 * Once we have the Modem's address established, we search for
232 	 * an address suitable for the Ethernet portion.  We do this by
233 	 * rounding up to the next 16-byte aligned address where 0x80
234 	 * isn't set (the SMC Ethernet chip has a 16-byte address size)
235 	 * and attemping to allocate a 16-byte region until we succeed.
236 	 *
237 	 * Sure would have been nice if Megahertz had made the card a
238 	 * proper multi-function device.
239 	 */
240 	SIMPLEQ_FOREACH(cfe, &pa->pf->cfe_head, cfe_list) {
241 		if (mhzc_check_cfe(sc, cfe)) {
242 			/* Found one! */
243 			break;
244 		}
245 	}
246 	if (cfe == NULL) {
247 		printf("%s: unable to find suitable config table entry\n",
248 		    sc->sc_dev.dv_xname);
249 		return;
250 	}
251 
252 	if (mhzc_alloc_ethernet(sc, cfe) == 0) {
253 		printf("%s: unable to allocate space for Ethernet portion\n",
254 		    sc->sc_dev.dv_xname);
255 		goto alloc_ethernet_failed;
256 	}
257 
258 	/* Enable the card. */
259 	pcmcia_function_init(pa->pf, cfe);
260 	if (pcmcia_function_enable(pa->pf)) {
261 		printf(": function enable failed\n");
262 		goto enable_failed;
263 	}
264 	sc->sc_flags |= MHZC_IOSPACE_ALLOCED;
265 
266 	if (sc->sc_product->mp_enable != NULL)
267 		(*sc->sc_product->mp_enable)(sc);
268 
269 	sc->sc_modem = config_found(&sc->sc_dev, "com", mhzc_print);
270 	sc->sc_ethernet = config_found(&sc->sc_dev, "sm", mhzc_print);
271 
272 	pcmcia_function_disable(pa->pf);
273 	return;
274 
275  enable_failed:
276 	/* Free the Ethernet's I/O space. */
277 	pcmcia_io_free(sc->sc_pf, &sc->sc_ethernet_pcioh);
278 
279  alloc_ethernet_failed:
280 	/* Free the Modem's I/O space. */
281 	pcmcia_io_free(sc->sc_pf, &sc->sc_modem_pcioh);
282 }
283 
284 int
285 mhzc_check_cfe(sc, cfe)
286 	struct mhzc_softc *sc;
287 	struct pcmcia_config_entry *cfe;
288 {
289 
290 	if (cfe->num_memspace != 0)
291 		return (0);
292 
293 	if (cfe->num_iospace != 1)
294 		return (0);
295 
296 	if (pcmcia_io_alloc(sc->sc_pf,
297 	    cfe->iospace[0].start,
298 	    cfe->iospace[0].length,
299 	    cfe->iospace[0].length,
300 	    &sc->sc_modem_pcioh) == 0) {
301 		/* Found one for the modem! */
302 		return (1);
303 	}
304 
305 	return (0);
306 }
307 
308 int
309 mhzc_alloc_ethernet(sc, cfe)
310 	struct mhzc_softc *sc;
311 	struct pcmcia_config_entry *cfe;
312 {
313 	bus_addr_t addr, maxaddr;
314 
315 	addr = cfe->iospace[0].start + cfe->iospace[0].length;
316 	maxaddr = 0x1000;
317 
318 	/*
319 	 * Now round it up so that it starts on a 16-byte boundary.
320 	 */
321 	addr = roundup(addr, 0x10);
322 
323 	for (; (addr + 0x10) < maxaddr; addr += 0x10) {
324 		if (addr & 0x80)
325 			continue;
326 		if (pcmcia_io_alloc(sc->sc_pf, addr, 0x10, 0x10,
327 		    &sc->sc_ethernet_pcioh) == 0) {
328 			/* Found one for the ethernet! */
329 			return (1);
330 		}
331 	}
332 
333 	return (0);
334 }
335 
336 int
337 mhzc_print(aux, pnp)
338 	void *aux;
339 	const char *pnp;
340 {
341 	const char *name = aux;
342 
343 	if (pnp)
344 		printf("%s at %s(*)",  name, pnp);
345 
346 	return (UNCONF);
347 }
348 
349 int
350 mhzc_detach(self, flags)
351 	struct device *self;
352 	int flags;
353 {
354 	struct mhzc_softc *sc = (void *)self;
355 	int rv;
356 
357 	if (sc->sc_ethernet != NULL) {
358 		rv = config_detach(sc->sc_ethernet, flags);
359 		if (rv != 0)
360 			return (rv);
361 		sc->sc_ethernet = NULL;
362 	}
363 
364 	if (sc->sc_modem != NULL) {
365 		rv = config_detach(sc->sc_modem, flags);
366 		if (rv != 0)
367 			return (rv);
368 #ifdef not_necessary
369 		sc->sc_modem = NULL;
370 #endif
371 	}
372 
373 	/* Unmap our i/o windows. */
374 	if (sc->sc_flags & MHZC_MODEM_MAPPED)
375 		pcmcia_io_unmap(sc->sc_pf, sc->sc_modem_io_window);
376 	if (sc->sc_flags & MHZC_ETHERNET_MAPPED)
377 		pcmcia_io_unmap(sc->sc_pf, sc->sc_ethernet_io_window);
378 
379 	/* Free our i/o spaces. */
380 	if (sc->sc_flags & MHZC_IOSPACE_ALLOCED) {
381 		pcmcia_io_free(sc->sc_pf, &sc->sc_modem_pcioh);
382 		pcmcia_io_free(sc->sc_pf, &sc->sc_ethernet_pcioh);
383 	}
384 
385 	return (0);
386 }
387 
388 int
389 mhzc_activate(self, act)
390 	struct device *self;
391 	enum devact act;
392 {
393 	struct mhzc_softc *sc = (void *)self;
394 	int s, rv = 0;
395 
396 	s = splhigh();
397 	switch (act) {
398 	case DVACT_ACTIVATE:
399 		rv = EOPNOTSUPP;
400 		break;
401 
402 	case DVACT_DEACTIVATE:
403 		if (sc->sc_ethernet != NULL) {
404 			rv = config_deactivate(sc->sc_ethernet);
405 			if (rv != 0)
406 				goto out;
407 		}
408 
409 		if (sc->sc_modem != NULL) {
410 			rv = config_deactivate(sc->sc_modem);
411 			if (rv != 0)
412 				goto out;
413 		}
414 		break;
415 	}
416  out:
417 	splx(s);
418 	return (rv);
419 }
420 
421 int
422 mhzc_intr(arg)
423 	void *arg;
424 {
425 	struct mhzc_softc *sc = arg;
426 	int rval = 0;
427 
428 #if NCOM_MHZC > 0
429 	if (sc->sc_modem != NULL &&
430 	    (sc->sc_flags & MHZC_MODEM_ENABLED) != 0)
431 		rval |= comintr(sc->sc_modem);
432 #endif
433 
434 #if NSM_MHZC > 0
435 	if (sc->sc_ethernet != NULL &&
436 	    (sc->sc_flags & MHZC_ETHERNET_ENABLED) != 0)
437 		rval |= smc91cxx_intr(sc->sc_ethernet);
438 #endif
439 
440 	return (rval);
441 }
442 
443 int
444 mhzc_enable(sc, flag)
445 	struct mhzc_softc *sc;
446 	int flag;
447 {
448 
449 	if (sc->sc_flags & flag) {
450 		printf("%s: %s already enabled\n", sc->sc_dev.dv_xname,
451 		    (flag & MHZC_MODEM_ENABLED) ? "modem" : "ethernet");
452 		panic("mhzc_enable");
453 	}
454 
455 	if ((sc->sc_flags & (MHZC_MODEM_ENABLED|MHZC_ETHERNET_ENABLED)) != 0) {
456 		sc->sc_flags |= flag;
457 		return (0);
458 	}
459 
460 	/*
461 	 * Establish our interrupt handler.
462 	 *
463 	 * XXX Note, we establish this at IPL_NET.  This is suboptimal
464 	 * XXX the Modem portion, but is necessary to make the Ethernet
465 	 * XXX portion have the correct interrupt level semantics.
466 	 *
467 	 * XXX Eventually we should use the `enabled' bits in the
468 	 * XXX flags word to determine which level we should be at.
469 	 */
470 	sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_NET,
471 	    mhzc_intr, sc);
472 	if (sc->sc_ih == NULL) {
473 		printf("%s: unable to establish interrupt\n",
474 		    sc->sc_dev.dv_xname);
475 		return (1);
476 	}
477 
478 	if (pcmcia_function_enable(sc->sc_pf)) {
479 		pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
480 		return (1);
481 	}
482 
483 	/*
484 	 * Perform any special enable magic necessary.
485 	 */
486 	if (sc->sc_product->mp_enable != NULL &&
487 	    (*sc->sc_product->mp_enable)(sc) != 0) {
488 		pcmcia_function_disable(sc->sc_pf);
489 		pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
490 		return (1);
491 	}
492 
493 	sc->sc_flags |= flag;
494 	return (0);
495 }
496 
497 void
498 mhzc_disable(sc, flag)
499 	struct mhzc_softc *sc;
500 	int flag;
501 {
502 
503 	if ((sc->sc_flags & flag) == 0) {
504 		printf("%s: %s already disabled\n", sc->sc_dev.dv_xname,
505 		    (flag & MHZC_MODEM_ENABLED) ? "modem" : "ethernet");
506 		panic("mhzc_disable");
507 	}
508 
509 	sc->sc_flags &= ~flag;
510 	if ((sc->sc_flags & (MHZC_MODEM_ENABLED|MHZC_ETHERNET_ENABLED)) != 0)
511 		return;
512 
513 	pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
514 	pcmcia_function_disable(sc->sc_pf);
515 }
516 
517 /*****************************************************************************
518  * Megahertz EM3336 (and compatibles) support
519  *****************************************************************************/
520 
521 int	mhzc_em3336_lannid_ciscallback __P((struct pcmcia_tuple *, void *));
522 int	mhzc_em3336_ascii_enaddr __P((const char *cisstr, u_int8_t *));
523 
524 int
525 mhzc_em3336_enaddr(sc, myla)
526 	struct mhzc_softc *sc;
527 	u_int8_t *myla;
528 {
529 
530 	/* Get the station address from CIS tuple 0x81. */
531 	if (pcmcia_scan_cis(sc->sc_dev.dv_parent,
532 	    mhzc_em3336_lannid_ciscallback, myla) != 1) {
533 		printf("%s: unable to get Ethernet address from CIS\n",
534 		    sc->sc_dev.dv_xname);
535 		return (0);
536 	}
537 
538 	return (1);
539 }
540 
541 int
542 mhzc_em3336_enable(sc)
543 	struct mhzc_softc *sc;
544 {
545 	struct pcmcia_mem_handle memh;
546 	bus_addr_t memoff;
547 	int memwin, reg;
548 
549 	/*
550 	 * Bring the chip to live by touching its registers in the correct
551 	 * way (as per my reference... the Linux smc91c92_cs.c driver by
552 	 * David A. Hinds).
553 	 */
554 
555 	/* Map the ISRPOWEREG. */
556 	if (pcmcia_mem_alloc(sc->sc_pf, 0x1000, &memh) != 0) {
557 		printf("%s: unable to allocate memory space\n",
558 		    sc->sc_dev.dv_xname);
559 		return (1);
560 	}
561 
562 	if (pcmcia_mem_map(sc->sc_pf, PCMCIA_MEM_ATTR, 0, 0x1000,
563 	    &memh, &memoff, &memwin)) {
564 		printf("%s: unable to map memory space\n",
565 		    sc->sc_dev.dv_xname);
566 		pcmcia_mem_free(sc->sc_pf, &memh);
567 		return (1);
568 	}
569 
570 	/*
571 	 * The magic sequence:
572 	 *
573 	 *	- read/write the CCR option register.
574 	 *	- read the ISRPOWEREG 2 times.
575 	 *	- read/write the CCR option register again.
576 	 */
577 
578 	reg = pcmcia_ccr_read(sc->sc_pf, PCMCIA_CCR_OPTION);
579 	pcmcia_ccr_write(sc->sc_pf, PCMCIA_CCR_OPTION, reg);
580 
581 	reg = bus_space_read_1(memh.memt, memh.memh, 0x380);
582 	delay(5);
583 	reg = bus_space_read_1(memh.memt, memh.memh, 0x380);
584 
585 	delay(200000);
586 
587 	reg = pcmcia_ccr_read(sc->sc_pf, PCMCIA_CCR_OPTION);
588 	delay(5);
589 	pcmcia_ccr_write(sc->sc_pf, PCMCIA_CCR_OPTION, reg);
590 
591 	pcmcia_mem_unmap(sc->sc_pf, memwin);
592 	pcmcia_mem_free(sc->sc_pf, &memh);
593 
594 	return (0);
595 }
596 
597 int
598 mhzc_em3336_lannid_ciscallback(tuple, arg)
599 	struct pcmcia_tuple *tuple;
600 	void *arg;
601 {
602 	u_int8_t *myla = arg, addr_str[ETHER_ADDR_LEN * 2];
603 	int i;
604 
605 	if (tuple->code == 0x81) {
606 		/*
607 		 * We have a string-encoded address.  Length includes
608 		 * terminating 0xff.
609 		 */
610 		if (tuple->length != (ETHER_ADDR_LEN * 2) + 1)
611 			return (0);
612 
613 		for (i = 0; i < tuple->length - 1; i++)
614 			addr_str[i] = pcmcia_tuple_read_1(tuple, i);
615 
616 		/*
617 		 * Decode the string into `myla'.
618 		 */
619 		return (mhzc_em3336_ascii_enaddr(addr_str, myla));
620 	}
621 	return (0);
622 }
623 
624 /* XXX This should be shared w/ if_sm_pcmcia.c */
625 int
626 mhzc_em3336_ascii_enaddr(cisstr, myla)
627 	const char *cisstr;
628 	u_int8_t *myla;
629 {
630 	u_int8_t digit;
631 	int i;
632 
633 	memset(myla, 0, ETHER_ADDR_LEN);
634 
635 	for (i = 0, digit = 0; i < (ETHER_ADDR_LEN * 2); i++) {
636 		if (cisstr[i] >= '0' && cisstr[i] <= '9')
637 			digit |= cisstr[i] - '0';
638 		else if (cisstr[i] >= 'a' && cisstr[i] <= 'f')
639 			digit |= (cisstr[i] - 'a') + 10;
640 		else if (cisstr[i] >= 'A' && cisstr[i] <= 'F')
641 			digit |= (cisstr[i] - 'A') + 10;
642 		else {
643 			/* Bogus digit!! */
644 			return (0);
645 		}
646 
647 		/* Compensate for ordering of digits. */
648 		if (i & 1) {
649 			myla[i >> 1] = digit;
650 			digit = 0;
651 		} else
652 			digit <<= 4;
653 	}
654 
655 	return (1);
656 }
657 
658 /****** Here begins the com attachment code. ******/
659 
660 #if NCOM_MHZC > 0
661 int	com_mhzc_match __P((struct device *, struct cfdata *, void *));
662 void	com_mhzc_attach __P((struct device *, struct device *, void *));
663 int	com_mhzc_detach __P((struct device *, int));
664 
665 /* No mhzc-specific goo in the softc; it's all in the parent. */
666 CFATTACH_DECL(com_mhzc, sizeof(struct com_softc),
667     com_mhzc_match, com_mhzc_attach, com_detach, com_activate);
668 
669 int	com_mhzc_enable __P((struct com_softc *));
670 void	com_mhzc_disable __P((struct com_softc *));
671 
672 int
673 com_mhzc_match(parent, match, aux)
674 	struct device *parent;
675 	struct cfdata *match;
676 	void *aux;
677 {
678 	extern struct cfdriver com_cd;
679 	const char *name = aux;
680 
681 	/* Device is always present. */
682 	if (strcmp(name, com_cd.cd_name) == 0)
683 		return (1);
684 
685 	return (0);
686 }
687 
688 void
689 com_mhzc_attach(parent, self, aux)
690 	struct device *parent, *self;
691 	void *aux;
692 {
693 	struct com_softc *sc = (void *)self;
694 	struct mhzc_softc *msc = (void *)parent;
695 
696 	printf(":");
697 	if (pcmcia_io_map(msc->sc_pf, PCMCIA_WIDTH_IO8, 0,
698 	    msc->sc_modem_pcioh.size, &msc->sc_modem_pcioh,
699 	    &msc->sc_modem_io_window)) {
700 		printf("unable to map I/O space\n");
701 		return;
702 	}
703 	printf(" io 0x%x-0x%x",
704 	    (int)msc->sc_modem_pcioh.addr,
705 	    (int)(msc->sc_modem_pcioh.addr + msc->sc_modem_pcioh.size - 1));
706 
707 	msc->sc_flags |= MHZC_MODEM_MAPPED;
708 
709 	sc->sc_iot = msc->sc_modem_pcioh.iot;
710 	sc->sc_ioh = msc->sc_modem_pcioh.ioh;
711 
712 	sc->enabled = 1;
713 
714 	sc->sc_iobase = -1;
715 	sc->sc_frequency = COM_FREQ;
716 
717 	sc->enable = com_mhzc_enable;
718 	sc->disable = com_mhzc_disable;
719 
720 	com_attach_subr(sc);
721 
722 	sc->enabled = 0;
723 }
724 
725 int
726 com_mhzc_enable(sc)
727 	struct com_softc *sc;
728 {
729 
730 	return (mhzc_enable((struct mhzc_softc *)sc->sc_dev.dv_parent,
731 	    MHZC_MODEM_ENABLED));
732 }
733 
734 void
735 com_mhzc_disable(sc)
736 	struct com_softc *sc;
737 {
738 
739 	mhzc_disable((struct mhzc_softc *)sc->sc_dev.dv_parent,
740 	    MHZC_MODEM_ENABLED);
741 }
742 
743 #endif /* NCOM_MHZC > 0 */
744 
745 /****** Here begins the sm attachment code. ******/
746 
747 #if NSM_MHZC > 0
748 int	sm_mhzc_match __P((struct device *, struct cfdata *, void *));
749 void	sm_mhzc_attach __P((struct device *, struct device *, void *));
750 
751 /* No mhzc-specific goo in the softc; it's all in the parent. */
752 CFATTACH_DECL(sm_mhzc, sizeof(struct smc91cxx_softc),
753     sm_mhzc_match, sm_mhzc_attach, smc91cxx_detach, smc91cxx_activate);
754 
755 int	sm_mhzc_enable __P((struct smc91cxx_softc *));
756 void	sm_mhzc_disable __P((struct smc91cxx_softc *));
757 
758 int
759 sm_mhzc_match(parent, match, aux)
760 	struct device *parent;
761 	struct cfdata *match;
762 	void *aux;
763 {
764 	extern struct cfdriver sm_cd;
765 	const char *name = aux;
766 
767 	/* Device is always present. */
768 	if (strcmp(name, sm_cd.cd_name) == 0)
769 		return (1);
770 
771 	return (0);
772 }
773 
774 void
775 sm_mhzc_attach(parent, self, aux)
776 	struct device *parent, *self;
777 	void *aux;
778 {
779 	struct smc91cxx_softc *sc = (void *)self;
780 	struct mhzc_softc *msc = (void *)parent;
781 	u_int8_t myla[ETHER_ADDR_LEN];
782 
783 	printf(":");
784 	if (pcmcia_io_map(msc->sc_pf, PCMCIA_WIDTH_IO16, 0,
785 	    msc->sc_ethernet_pcioh.size, &msc->sc_ethernet_pcioh,
786 	    &msc->sc_ethernet_io_window)) {
787 		printf("unable to map I/O space\n");
788 		return;
789 	}
790 	printf(" io 0x%x-0x%x\n",
791 	   (int)msc->sc_ethernet_pcioh.addr,
792 	   (int)(msc->sc_ethernet_pcioh.addr + msc->sc_ethernet_pcioh.size - 1));
793 
794 	msc->sc_flags |= MHZC_ETHERNET_MAPPED;
795 
796 	sc->sc_bst = msc->sc_ethernet_pcioh.iot;
797 	sc->sc_bsh = msc->sc_ethernet_pcioh.ioh;
798 
799 	sc->sc_enable = sm_mhzc_enable;
800 	sc->sc_disable = sm_mhzc_disable;
801 
802 	if ((*msc->sc_product->mp_enaddr)(msc, myla) != 1)
803 		return;
804 
805 	/* Perform generic initialization. */
806 	smc91cxx_attach(sc, myla);
807 }
808 
809 int
810 sm_mhzc_enable(sc)
811 	struct smc91cxx_softc *sc;
812 {
813 
814 	return (mhzc_enable((struct mhzc_softc *)sc->sc_dev.dv_parent,
815 	    MHZC_ETHERNET_ENABLED));
816 }
817 
818 void
819 sm_mhzc_disable(sc)
820 	struct smc91cxx_softc *sc;
821 {
822 
823 	mhzc_disable((struct mhzc_softc *)sc->sc_dev.dv_parent,
824 	    MHZC_ETHERNET_ENABLED);
825 }
826 
827 #endif /* NSM_MHZC > 0 */
828